Chess Board Test

by Elijah Tate

HTML

<div class="mainParent">
  <div class="mainBoard">
    <div class="mainPieces">
      <div class="whitePiece" id="draggable-element"></div>
      <!--<div class="blackPiece"></div>
      -->
    </div>
    <div class="row">
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="clearBoth"></div>
    </div>
    <div class="row">
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="clearBoth"></div>
    </div>
    <div class="row">
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="clearBoth"></div>
    </div>
    <div class="row">
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="square white"></div>
      <div class="square black"></div>
      <div class="clearBoth"></div>
    </div>
  </div>
</div>

CSS

body,
div {
  padding: 0;
  margin: 0;
}

.mainPieces {}

.whitePiece {
  background: white;
  position: absolute;
  border: 1px solid black;
  width: 25px;
  height: 55px;
}

.blackPiece {
  background: black;
  position: absolute;
  border: 1px solid white;
  width: 25px;
  height: 55px;
}

.mainParent {
  padding: 0;
  margin: 50px 0 0 50px;
}

.mainBoard {
  width: 200px;
  height: 200px;
  padding: 0;
  margin: 0;
}

.row {
  padding: 0;
  margin: 0;
}

.mainBoard .row .square {
  width: 50px;
  height: 50px;
  padding: 0;
  margin: 0;
  float: left;
}

.black {
  background: black;
  padding: 0;
  margin: 0;
}

.white {
  background: white;
  padding: 0;
  margin: 0;
}

.clearBoth {
  clear: both;
}

JavaScript

var ChessBoard = (function() {

  return {

  }
});
3
var ChessPiece = (function() {
  var mouseXPos = 0;
  var mouseYPos = 0;
  var myXPos = 0;
  var myYPos = 0;


  return {

  }
});

var ChessGrid = (function() {

  return {

  }
});

var selected = null, // Object of the element to be moved
  x_pos = 0,
  y_pos = 0, // Stores x & y coordinates of the mouse pointer
  x_elem = 0,
  y_elem = 0; // Stores top, left values (edge) of the element

// Will be called when user starts dragging an element
function _drag_init(elem) {
  // Store the object of the element which needs to be moved
  selected = elem;
  x_elem = x_pos - selected.offsetLeft;
  y_elem = y_pos - selected.offsetTop;
}

// Will be called when user dragging an element
function _move_elem(e) {
  x_pos = document.all ? window.event.clientX : e.pageX;
  y_pos = document.all ? window.event.clientY : e.pageY;
  if (selected !== null) {
    selected.style.left = (x_pos - x_elem) + 'px';
    selected.style.top = (y_pos - y_elem) + 'px';
  }
}

// Destroy the object when we are done
function _destroy() {
  selected = null;
}

// Bind the functions...
document.getElementById('draggable-element').onmousedown = function() {
  _drag_init(this);
  return false;
};

document.onmousemove = _move_elem;
document.onmouseup = _destroy;